#验证#(A|B)=#A+#B-#(A^B)
import _00SetFunc as sf

A=sf.createset(50,25)
B=sf.createset(50,20)
print("A,B",A,B)
tv=len(A|B)==(len(A)+len(B)-len(A&B))
print("#(A|B)=#A+#B-#(A^B)",tv)
